This evening for the first time we're hearing from someone who knew the whistle blower well. Abc's bob woodruff is in hong kong with new clues about what might have motivated the 29-year-old american to reveal so much. ter: HERE IN HONG KONG, Edward snowden is still in hiding, and while he has not yet been charged with any crime, many here believe he's done noong. Arrest obama! Reporter: Today, protesters took to the streets. Here on the square, there appears to be a growing number of supporters of mr. Snowden. In fact, some here even asked the u.S. Government to apologize. He's not a hero or a traitor. He's just trying to do the right thing. Reporter: Tonight, the father of his girlfriend, lindsay mills, told abc news that snowden had very strong political beliefs and appeared frustrated over the way average americans could be spied on by the government. Very shocked that he went this far with this information and this whole situation, but i kind of understand, knowing how convicted he is towards right, wrong and the american way. Reporter: Now, for the first time, some of those social media giants have released the numbers of how many users were tapped by the government. Facebook has said 10,000 of its records were requested, which, they point out, is just a tiny fraction of its billion monthly users.

This transcript has been automatically generated and may not be 100% accurate.

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